PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-17:58:10
G10     291.3          50.7               13.9 +/-    3.01      17.4 +/-    3.01  0.070 / 0.120
G15     46.9           31.1               10.3 +/-    1.13      17.7 +/-    1.13  0.070 / 0.100
G20     345.1          65.4               13.7 +/-    0.97      14.9 +/-    0.97  0.040 / 0.040
G21     74.4           76.5               14.3 +/-    0.61      14.7 +/-    0.61  0.040 / 0.040
G24     105.2          24.4               15.5 +/-    1.17      30.6 +/-    1.17  0.110 / 0.190
G27     306.2          31.8               13.6 +/-    1.00      23.0 +/-    1.00  0.140 / 0.200
G29     168.2          13.4               15.3 +/-    0.93      39.5 +/-    0.93  0.090 / 0.150
G32     207.8          27.8               16.2 +/-    1.08      29.8 +/-    1.08  0.100 / 0.140